The X Factor: XCO2’s holistic approach to environmental consultancy

CIBSE Building Performance Award Winner XCO2 was set up to provide MEP and environmental engineering, which has enabled a holistic approach to building design, focusing on passive design and ‘barely there’ services. Andy Pearson speaks to co-founder Tom Kordel

Zoning in: the new Heat Network Zoning consultation

The government is aiming for 11% of heat in the UK to be supplied by heat networks within newly designated heat zones. Alex Smith looks at the routes to connection in the new Heat Network Zoning consultation

Route to jet zero: decarbonising aviation

With aviation accounting for 2.5% of global carbon emissions, it is vital that the sector prepares for the decarbonisation of air travel. Molly Tooher-Rudd finds out how Atkins is decarbonising airport infrastructure and gearing up for a new generation of electric and hydrogen-powered flight

Boxing clever: retrofits in Ireland

With Dublin planners now requiring that building re-use is considered over demolition, innovative office retrofits will soon become the norm. Andy Pearson looks at two: Tom Johnson House and the Tropical Fruit Warehouse

Formula for success: Sizing heat pumps in hybrid energy centres

Reducing the size of heat pumps in hybrid energy centres can cut carbon and capital costs dramatically – but what ratio of heat should they supply? Research by FairHeat’s Ellie Hiscock used hourly load modelling to come up with a rule of thumb for the optimal heat ratios for heat pumps and thermal storage with electric boilers

Case study: Comberton Village College heat network

The installation of a new heat network at Comberton Village College is set to significantly reduce the heating bill and save 248 tonnes of CO2. Andy Pearson speaks to Bouygues Energies & Services about how two 500kW ground source heat pumps replaced oil-fired boilers scattered across 16 plantrooms